/* Gauge - Performance Measurement Framework for Mobile Platforms
 * Copyright (C) 2013, Juha Hytonen <juha.a.hytonen@gmail.com>
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

package org.gauge.ExampleBenchmarks.Workloads;

import android.app.Service;
import android.content.Intent;
import android.media.MediaPlayer;
import android.os.Binder;
import android.os.IBinder;
import android.os.RemoteException;

import org.gauge.ExampleBenchmarks.R;
import org.gauge.ExampleBenchmarks.Workloads.WBSCallback;
import org.gauge.ExampleBenchmarks.Workloads.WBSInterface;

/**
 * Works as a proxy between WebBrowsing and WebBrowsing, which in
 * different processes.
 */
public final class WebBrowsingService extends Service {
	
	private final WBSInterface.Stub binder = new WBSInterface.Stub() {
		@Override
		public void SetCallback(WBSCallback callback) {
			setCallback(callback);
		}
		@Override
		public void GoTo(String url) {
			goTo(url);
		}
		@Override
		public void Exit() {
			exit();
		}
	};
	private WBSCallback callback;

	@Override
	public IBinder onBind(Intent intent) {
		return binder;
	}

	@Override
	public boolean onUnbind(Intent intent) {
		return false;
	}
	
	synchronized private void setCallback(WBSCallback callback) {
		this.callback = callback;
		notify();
	}
	
	private void goTo(String url) {
		waitForCallback();
		try {
			callback.GoTo(url);
		}
		catch(RemoteException e) {
		}
	}
	
	private void exit() {
		waitForCallback();
		try {
			callback.Exit();
		}
		catch(RemoteException e) {
		}
	}
	
	private void waitForCallback() {
		if(callback != null) {
			return;
		}
		
		try {
			synchronized(this) {
				wait();
			}
		}
		catch(InterruptedException e) {
		}
	}
	
}
